NAME:______________________________________________DATE:__________
1. Define haploid and diploid cells.
2. Explain what is meant by homologous pairs of
chromosomes.
3. Define chromatids.
4. Define Cytokinesis.
5. State the phases of mitosis.
RICHARD LLOPIS-GARCIA
AS BIOLOGY FOUNDATION
1
NAME:______________________________________________DATE:__________
6. Which one you think is the main biological
significance of mitosis and why?
7. In the mitotic cell cycle of a human cell:
i)
How many chromatids are present as the cell
enters mitosis?
ii) How many DNA molecules are present?
iii) How many chromatids are present in the
nucleus of each daughter cell after mitosis
and cell division?
iv) How many chromatids are present in the
nucleus of a cell after replication of DNA?
RICHARD LLOPIS-GARCIA
AS BIOLOGY FOUNDATION
2
NAME:______________________________________________DATE:__________
1. Draw a simple diagram of a cell that
contains only one pair of homologous
chromosomes (i) at metaphase of mitosis,
(ii) at anaphase of mitosis.
2. What chemical subunits are used to
synthesise new DNA molecules during
replication of DNA.
3. Of what elements are these subunits
made?
4. State 2 functions of centromeres during
nuclear division.
RICHARD LLOPIS-GARCIA
AS BIOLOGY FOUNDATION
3
NAME:______________________________________________DATE:__________
5. What is the most common form of cancer
in (a) men, (b) women, and why?
6. Define oncogene
7. How many carcinogens can you name?
8. What are the differences between benign
and malignant tumours?
RICHARD LLOPIS-GARCIA
AS BIOLOGY FOUNDATION
4
NAME:______________________________________________DATE:__________
9. Can you describe the last stage in the
development of cancer?
10. Explain the link between cancer and
mitosis. Describe how the chances
developing in the human body may be
increases
RICHARD LLOPIS-GARCIA
AS BIOLOGY FOUNDATION
5
NAME:______________________________________________DATE:__________
1. What do you understand by “Cancer
Magic Bullet”.
2. What is leukaemia? How could you
recognise leukaemia?
3. What do you understand by
Chemotherapy?
4. Describe a biopsy.
5. Can you give an example of a skin
cancer?
RICHARD LLOPIS-GARCIA
AS BIOLOGY FOUNDATION
6